Question: Which is the chemical composition of drug used for treatment of Asthma?
Paraphrase: Which is the chemical composition of sedate utilized for treatment of Asthma?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q35869 wdt:P2176 ?obj . ?obj wdt:P31 wd:Q11173 } 
Answer: zileuton, ephedrine, pseudoephedrine, theophylline, betamethasone, cromolyn, metaproterenol, montelukast, salmeterol, terbutaline, aminophylline, formoterol, zafirlukast, dyphylline, troleandomycin, pirbuterol, bambuterol, etofylline, acefylline, bitolterol, Oxtriphylline, Ephedra, diphemanil, halothane